Almost made the same mistake as RightYouAreKen till I read it a second time. Also disappointing to see you never mentioned the boxes you were opening were provided to you free by Wargaming (which AFAIK you are required to do by FTC)

In a manor of speaking, Yes.
KTKM-sama was only available in-game (ie. for Doubloons) during the CBT and at the end of CBT, if you've bought any of the Tech Tree premiums you were refunded the Doubloon value going into the OBT - which is when Kitakami was replaced with Atago